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1. 发明专利

DE60141449D1 未知
公开(公告)号：DE60141449D1
公开(公告)日：2010-04-15
申请号：DE60141449
申请日：2001-08-28
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： NAKAGAWA SHINJI , OSUGA MINORU , NAGANO MASAMI , TAKAMURA HIROYUKI
IPC分类号： F02M25/07 , B60K6/20 , B60K6/48 , B60K6/485 , B60K6/54 , B60W10/02 , B60W10/06 , B60W10/08 , B60W20/00 , F02D9/02 , F02D11/10 , F02D17/00 , F02D21/08 , F02D29/02 , F02D41/02 , F02D41/04 , F02D41/06 , F02D41/14 , F02D45/00 , F02N11/08

2. 发明专利

DE10111484B4 未知
公开(公告)号：DE10111484B4
公开(公告)日：2009-02-19
申请号：DE10111484
申请日：2001-03-09
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SOMENO TADASHI , NAGANO MASAMI , KADOMUKAI YUZO , OKAMOTO YOSHIO
IPC分类号： F02B31/00 , F02D43/04 , F02B31/02 , F02B31/06 , F02D41/00 , F02D41/04 , F02D41/34 , F02D43/00 , F02M51/06 , F02M61/16 , F02M69/00 , F02M69/04
摘要： A control device for an internal combustion engine including fuel injection valves which are disposed at an air intake port for the internal combustion engine and inject fuel from the air intake port toward respective cylinders for the internal combustion engine; and an air flow velocity accelerating means which accelerates air flow velocity in the air intake port, wherein the fuel injection time from the fuel injection valves is controlled in synchronism with and during an air intake stroke for the internal combustion engine as well as respective injection ports of the fuel injection valves are positioned at or near an accelerated air flow portion formed by the air flow velocity accelerating means. Thereby, in a multi point fuel injection system quality and spatial formation of air fuel mixture in the respective cylinders is enhanced and transportation time delay due to atomization of injected fuel droplet diameter is eliminated.

3. 发明专利

DE10108541B4 未知
公开(公告)号：DE10108541B4
公开(公告)日：2009-02-05
申请号：DE10108541
申请日：2001-02-22
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： OKAMOTO YOSHIO , KADOMUKAI YUZO , MIYAJIMA AYUMU , NAGANO MASAMI , SOMENO TADASHI
IPC分类号： F02B15/00 , F02M51/06 , F02M61/12 , F02M61/16 , F02M61/18 , F02M65/00 , F02M69/02 , F02M69/04
摘要： In a fuel injection apparatus of an internal combustion engine comprising a fuel injector, an intake valve device for opening and closing an intake port, and an intake air flow control device arranged in an upstream side of the intake valve device, a fuel injection is synchronized with an intake stroke of the engine. A fuel spray is oriented to an inner wall face which is positioned in an opposite side to an inner wall face of a cylinder heads in a fuel injector side and the fuel spray is transported by an air flow having a strong fluidization which is entered from the intake air control device. In a port injection lean burn engine, an adhesion to the wall face according to the fuel spray can be reduced, and a quality and a formation state of an air-fuel mixture in a cylinder can be improved.

4. 发明专利

DE602004003269D1 未知
公开(公告)号：DE602004003269D1
公开(公告)日：2007-01-04
申请号：DE602004003269
申请日：2004-01-20
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： KATOGI KOZO , NAGANO MASAMI , SEKINE HIROSHI , TAKAMURA HIROYUKI , NAKAGAWA SHINJI
IPC分类号： F01N3/22 , F02M37/00 , F01N3/30 , F01N3/32 , F01N9/00 , F01N11/00 , F01N13/02 , F02B37/00
摘要： The invention relates to an exhaust gas purifier that in order to improve the decrease of the catalytic action and the deterioration of the exhaust purification performance, has a catalyst (118) installed in the exhaust pipe of an engine (100) and a secondary air pump (124) for supplying secondary air into the exhaust pipe are provided, and the secondary air pump (124) is operated even after the engine (100) has stopped.

5. 发明专利

DE19903549B4 未知
公开(公告)号：DE19903549B4
公开(公告)日：2006-11-23
申请号：DE19903549
申请日：1999-01-29
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： NEMOTO MAMORU , NAGANO MASAMI , ISHIKAWA HIROTO
IPC分类号： F02D41/00 , F02D41/22 , G01B21/22 , F02D41/34 , F02D45/00 , F02P3/04 , F02P17/00
摘要： The present invention relates to a cylinder identifying device to identify the cylinder or cylinders of a running internal combustion engine in a specific stroke, and more particularly to a cylinder identifying device for internal combustion engines suitable for automotive use. A signal plate for detecting revolutions, fitted to the camshaft, is provided with two signal generating means per cylinder; a cylinder identifying signal is added before said two signals; and two sensors are so arranged as to have a phase difference from the detection of said projection. Bit patterns are prepared from the outputs of these two sensors correspondingly to individual cylinders, and cylinder identification is accomplished according to the combination of these patterns. The phase difference here is so set that the number of signals detected by the second sensor (sub-crank angle sensor, hereinafter abbreviated SCAS), out of said two sensors, between signals detected by the first sensor (base crank angle sensor, hereinafter abbreviated to BCAS), can be one of three kinds. A signal from a BCAS signal input means is received, and the number of signals generated is measured by a signal counting means. Further a SCAS signal is received by a SCAS signal input means, and bit patterns are generated by a bit preparing means. Cylinder identification is performed according to a bit pattern for cylinder identification from a cylinder identification criterion storage means, another bit pattern generated by said bit preparing means and the number of signals generated by the signal counting means.

6. 发明专利

DE10115442A1 未知
公开(公告)号：DE10115442A1
公开(公告)日：2001-10-25
申请号：DE10115442
申请日：2001-03-29
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： AMOU KIYOSHI , OKAMOTO YOSHIO , KOWATARI TAKEHIKO , MIYAJIMA AYUMU , KADOMUKAI YUZO , ISHIKAWA TORU , NAGANO MASAMI , ICHIHARA TAKANOBU , SAEKI HIROAKI , WATANABE KENJI
IPC分类号： F02M61/16 , F02M69/32 , F02M69/08 , F02M31/02
摘要： Atomizing air flowing in an atomizing gas passage is merged with a fuel spray to promote atomization of the fuel, and carrier air flowing in a carrier gas passage is merged with the fuel spray at a further downstream position so as to surround the fuel spray. By doing so, the atomized fuel spray is carried to the downstream side so as to prevent the fuel spray from adhering onto the wall surface. The starting-up performance, fuel consumption and exhaust gas cleaning of an internal combustion engine are improved in this way.

7. 发明专利

DE10104232B4 未知
公开(公告)号：DE10104232B4
公开(公告)日：2009-11-26
申请号：DE10104232
申请日：2001-01-31
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： NONOMURA SHIGEYUKI , NAGANO MASAMI , OHSUGA MINORU , NOGI TOSHIHARU
IPC分类号： F01L13/00 , F02D41/06 , F02B31/00 , F02D13/02 , F02D21/08 , F02D41/02 , F02D41/04 , F02D41/30 , F02D41/32 , F02D43/00 , F02D45/00 , F02M69/04
摘要： In an engine control apparatus for a multicylinder engine including an injection pulse width-setting unit for setting an injection pulse width for an injection valve situated in each cylinder based on signals output from an engine operational condition-detection system situated in a vehicle; the injection pulse width-setting unit includes an engine starting injection pulse-setting unit for setting an injection pulse width for each cylinder in the engine starting operation, and the engine starting injection pulse-setting unit includes an injection pulse width-correction unit for determining a correction coefficient to a basic injection pulse width, for each cylinder at each cycle.

8. 发明专利

DE10115282A1 未知
公开(公告)号：DE10115282A1
公开(公告)日：2001-11-08
申请号：DE10115282
申请日：2001-03-28
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： AMOU KIYOSHI , OKAMOTO YOSHIO , KADOMUKAI YUZO , KOWATARI TAKEHIKO , MIYAJIMA AYUMU , NAGANO MASAMI , ICHIHARA TAKANOBU , SAEKI HIROAKI , SOMENO TADASHI
IPC分类号： F02M31/135 , F02M35/10 , F02M69/04 , F02M69/30 , F02M69/32 , F02D9/10 , F02M31/04 , F01P1/06 , F02D41/38
摘要： A main passage mounting a throttle valve and an air bypass flow passage for reducing HC emission by promoting atomization of the fuel spray injected from the assembly pipe fuel injector are integrated in a body of an intake air control device arranged upstream of an assembly pipe in a one-piece structure to form a unit. Thereby, the intake air control device can be easily manufactured and easily mounted on and dismounted from the intake air system. The amount of HC emitted during warming-up operation of an internal combustion engine is reduced by efficiently supplying fuel spray injected from an assembly pipe fuel injector at the time of starting and warming-up operations for the internal combustion engine.

9. 发明专利

DE10026682A1 Device for controlling fuel supply to a multi-cylinder internal combustion engine has a fuel injection device with an air supplementing process. 未知
公开(公告)号：DE10026682A1
公开(公告)日：2000-12-21
申请号：DE10026682
申请日：2000-05-30
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： NAGANO MASAMI , ASANO SEIJI , NEMOTO MAMORU
IPC分类号： F02M69/00 , F02D41/34 , F02M69/04 , F02M69/08 , F02M67/00
摘要： Fuel injection occurs during an intake stroke if an air supplementing process supplies supplementary air. Fuel injection occurs during a gas emission stroke if no air supplementing process is performed. Supplementary air volume, droplet range and operating status are brought together.

10. 发明专利

GB2316448A An intake manifold with single point fuel injection 未知
公开(公告)号：GB2316448A
公开(公告)日：1998-02-25
申请号：GB9717488
申请日：1997-08-18
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： OTANI ASAHIKO , NAGANO MASAMI , TAMURA MAKOTO , NEMOTO MAMORU
IPC分类号： F02D9/10 , F02M35/10 , F02M35/112 , F02M61/18 , F02M69/00 , F02M69/04
摘要： An fuel injector 3 with a plurality of linearly aligned nozzle ports (figures 2 and 3) is placed in an intake manifold 2 downstream of a throttle valve 4 but immediately upstream of a branch section 2a, 2b, 2c in the manifold 2. Each nozzle port directs a spray of fuel at a branch opening and the injector 3 is arranged within the manifold 2 so the air flowing from throttle to the branch section has minimal disturbance on the distribution of the fuel spray. Such an arrangement may involve the stem of the throttle valve 4 being parallel with the linearly aligned nozzle ports of fuel injector 3 and an auxiliary intake tube 8 introducing air with a flow direction overlapping a direction of the central nozzle port 2dj.

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